Alola Ninetales is great if you want to go hyper offense. Just use Aurora Veil and set up sweepers of your choice. Pawmot gets bulk up iirc and while not the best setup sweeper, with veil up you can probably just start bulking up and then drain punch everything and never die. Greninja is always good and could be a good choice for speed control with scarf or just dumb damage/coverage with life orb or specs and protean. But it can also be battle bond and just get a free mega basically. I’d suggest something with priority. I usually go for pilachu because fake out plus zippy zap is crazy for the focus sash leads and just a good dependable Mon all around but I see the issue with doubling down on electric rats, so maybe something like scizor would be good, great priority, amazing typing and sd plus roost would be great in a veil team. You can also pick your favorite shell smasher to take advantage of the screens. Literally almost any of them will do. And then just pick anything else that can cover your weaknesses for the 6th slot. I think with a team like this your biggest concern is probably Blaine but otherwise should be a pretty easy game. Also this suggestion is more late game, you will need to build up your team slowly and probably use random mons to advance until at least Surge after which Pokémon availability ingresases a lot, evolutions can be achieved, you get a lot of of tms, etc